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%I #4 Dec 21 2015 12:27:46
%S 16,625,1959,44623,1285961,13689944,311260836,6688962679,100184677192,
%T 2265417750456,45483452144968,770435712461338,16815081540198455,
%U 333162387132057777,5991913305292420418,126615975061832318833
%N Number of nX6 integer arrays with each element equal to the number of horizontal, diagonal and antidiagonal neighbors exactly one smaller than itself.
%C Column 6 of A266131.
%H R. H. Hardin, <a href="/A266129/b266129.txt">Table of n, a(n) for n = 1..74</a>
%e Some solutions for n=4
%e ..0..2..1..1..1..1....0..1..1..0..2..1....1..0..1..2..1..0....0..2..1..1..2..0
%e ..1..0..2..2..0..0....2..3..2..3..0..1....1..1..2..1..0..1....1..0..2..2..0..1
%e ..0..1..3..2..0..0....1..1..2..2..1..0....0..2..2..0..1..2....1..1..2..3..1..2
%e ..1..0..1..2..1..1....0..0..1..1..0..1....1..0..0..2..1..2....0..1..2..0..1..2
%Y Cf. A266131.
%K nonn
%O 1,1
%A _R. H. Hardin_, Dec 21 2015
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